US Bridges

I 10; WB on Ramp over Wash

Good

Cochise County, Arizona · 6.6 MI East JCT US 191 · Structure no. 06149

Built
1939
86 years old, rebuilt 1994
Condition
Good
inspected September 2024
Type
Culvert
Concrete Continuous
Length
37 ft
3 main spans
Daily traffic
550
2022 count
Owner
State
State Highway Agency

About this bridge

I 10; WB on Ramp over Wash is a concrete continuous culvert carrying I 10; WB on Ramp over Wash in Cochise County, Arizona. It was built in 1939 and reconstructed in 1994, so it is 86 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 550 vehicles a day, roughly 10% of them trucks, projected to reach 560 by 2042. The structure is 37 ft (11.3 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 10; WB on Ramp
CrossesWash
Location6.6 MI East JCT US 191
RouteInterstate 10
StateArizona
Coordinates32.332, -109.5159
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating40 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span10 ft (3 m)
Deck width48 ft (14.5 m)
Roadway width46 ft (13.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2022)
Projected traffic560 by 2042
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 10; WB on Ramp over Wash built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1994.

What condition is I 10; WB on Ramp over Wash in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does I 10; WB on Ramp over Wash carry?

About 550 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is I 10; WB on Ramp over Wash?

The structure is 37 ft (11.3 m) long with a longest span of 10 ft (3 m) and a deck 48 ft wide.

Who owns I 10; WB on Ramp over Wash?

It is owned by the State Highway Agency.